DL-Phenylalanine is a dietary supplement formulated to support mental functioning and emotional well-being.*

DL-Phenylalanine is a combination of the well-tolerated essential amino acids, d-phenylalanine and l-phenylalanine. Together, these amino acids have been studied for their potential to promote mental functioning and to support positive mood. l-Phenylalanine is a precursor to l-tyrosine, which is converted to the catecholamine neurotransmitters norepinephrine, epinephrine, dopamine and tyramine. l-Tyrosine and its metabolites play a role in emotional well-being, memory and learning.3 d-Phenylalanine may promote the levels of certain endorphins, which play a role in maintaining muscle and joint comfort.*

• Supports production of neurotransmitters required for emotional well-being*
• A combination of well-tolerated essential amino acids
• Made with high-quality ingredients backed by verifiable science